JPS5953331A - Page turner - Google Patents

Abstract

PURPOSE:To prevent damages of a booklet document and to reliably prevent turning a plurality of documents at one time by using an air-suction multi-feed preventing device. CONSTITUTION:Where a sheet of document is turned, a document adsorbing device 2 and a multi-feed preventing device 3 are moved to the left in the same direction, with a document clamped between both devices 2, 3 to turn a page. Where two and more sheets of documents are pulled up by the document adsorbing device 2, the following document 25'' is adsorbed to a suction opening of the multi-feed preventing device 3, and the uppermost document 25' and the following document 25'' are separated from each other. Subsequently, when the suction operation is once stopped, the following document 25'' is dropped to the initial position, and then the uppermost document 25' adsorbed by the document adsorbing device 2 is turned over.

Description

DETAILED DESCRIPTION OF THE INVENTION <Prior Art> Misfire 8IJ relates to a page turning device f'fl, and more specifically to a copying machine and an electronic file.

The present invention relates to a page turning device used in devices such as printers and printers that require high reliability in the original 4iN input mechanism.

BACKGROUND ART Conventionally, various methods have been provided for turning the pages of a booklet-like manuscript.

For example, there is a method of inserting a rod-shaped piece of paper between each page in advance. However, with this method, it is difficult to handle thick booklets with a large number of pages. Furthermore, although a method of turning pages using a frictional member such as a roller has been proposed, it is difficult to take measures to prevent double feeding during the conveyance process as with sheet originals. Furthermore, there is also a method using a device that uses air suction, but in the same way as the above-mentioned method using a frictional part such as a roller, there is also a method that uses a device to prevent double feeding in addition to the document suction device during the conveyance process, such as when sorting documents. It is difficult to provide a surface.

<Purpose of 1″!l> In view of the above, Akira Kimoto did not try to forcefully prevent double feeding using a friction member as in the past, but instead used an air suction method to prevent double feeding. By using the device A, it is small, does not damage the original, and can prevent multiple sheets of original from being turned over at the same time (111). The purpose is to provide a turning device.

In addition, misfire 1 is caused by the double feeding prevention operation described above, or when the original with only one sheet left is sandwiched between the document suction device and the double feeding prevention device. lJ) The objective is to provide a page-turning system that does not necessarily require a separate page-turning section. Ru.

In history, did the first row of misfires really suck the manuscript? 1, avoid the small 1:1 size of the 1:1 document whose shape changes as it is turned over, and use the document suction device A'J to suck the document + + tr1.
It is an object of the present invention to provide a reliable 111b page turning device 1''1'' in which + is set at (1γ).

<Example> Explanation 1 (11) of F+'& formation of unexploded search 1 with reference to the drawings.

FIGS. 1(1) to θO1 are first views showing the operation of the page turning device of this embodiment. FIG. 2 is an explanatory diagram of the operating circuit of the page turning device of this embodiment. In Figure 1, 1
0'' is a booklet-like original, 2 is a document suction device, 3 is a vehicle feed prevention device, 4 is an air suction port, 5 is the booklet-like BJEj height 1 cutting\11.25', 251/ is original + height . In FIG. 2, 20 (!'Il') is a control circuit, 21 is a document anomalous name detection circuit, 22i is a J suction force (negative pressure) control circuit, and this suction force (negative pressure) control circuit. The circuit 22 has a three-piece air case (not shown in the figure) for preventing vehicle transport, as shown in FIG. A negative pressure chamber is formed in the inside of the air casing, and a part of the air casing protrudes forward to form an air suction chamber. The lower end of the air case song forming this air suction port 4 is formed into a sharp pyramidal shape. It is designed to make a reciprocating motion, and is a motor with an 11 drive source for this reciprocating motion.

Next, the operation of the page turning device of this embodiment will be explained in detail based on FIGS. 1 and 2.

In FIG. 1, when the instruction is given to start turning the booklet-like original 1 (FIG. 1 (1)), the uppermost original 25' of the booklet-like originals l mounted on the base plate-hK is transferred to the suction device. Suction JlrlK, which is the document suction surface of the suction device 2: The document 1 & placement device 2 are lowered until the uppermost document 25' is reached (FIG. 1 (2)). At this time, the small feed protection +1 device 3 is in the standby position and is not performing a suction operation.

Next, as shown in FIG. 1 (3), the document 25' placed in the highest position is sucked into the document suction device light 2, and on the same day
7° position 〢Double feed prevention position Ht 1〉 Move up and turn 1 and stop.

In the stable C, the carriage prevention device 3 starts the suction operation U1, and the uppermost document 25 is sucked into the document suction device i)/2.
When the suction 11 of the intrusion prevention device iT 3 is pressed tightly against the front surface of the document 1 (see Fig. 1 (4)), the document is moved back to the predetermined 1 position, that is, the document detection position. (Figure 1 (5)). This double-feed prevention device is performed by the control circuit 20 (1j 11 decimal digits and 1 digits shown in FIG. 2). At this position, whether the document is attracted to the suction port of the double feed prevention 1L device 3 or not is determined by the document suction detection circuit 21 (see FIG. )K, so line 5゜In addition, in this case double feeding is prevented -! Since the suction force of the device 3 is set to be weaker than the suction force of the document suction device 2, the document 2 that is in the first place either by the transport prevention device 3 or the document suction device 2 is
There is no Kokichi to withdraw 5'.

If the document is not attracted to the double-feed prevention device 3, that is, if only one document is turned over, as shown in FIG.
) As shown below, the document suction device 2 and double feed prevention device 3
The document adsorption device 1' with the document sandwiched between the
j 2 and the double feed prevention device 1q3 move in the same direction (to the left in FIG. 1) and turn the page. At this time, the document suction device 2 and the double feeding prevention device 3 are stopped in suction operation.

On the other hand, the papa paper adsorption device i? ＋"2, if 12 or more original documents 1, 1 are being pulled, the next document 25 will be sucked into the suction port of the forwarding prevention device U3, and the next document 25 will be drawn up. 1st place.

The original 25' and the next original 25'' are separated.
The suction force of the double feed prevention device 3 is set to be larger than the suction force for document documents. The above state is detected by the document suction detection circuit 21 shown in FIG. 2, and the suction operation is temporarily stopped in order to make it easier for the next document 25 to fall back to its original position. Next, the standby position shown in FIG. 1 (3) is taken, and after the predetermined time required for the next document 25IL to fall and return to the original f+7° position, the suction operation starts at 41J. At the same time, the above-mentioned detection operation starts. The goods 71 pulled up by the document suction device a2. i or 2 pieces/6 for moss, 1. As shown below, wear the shoes at 4°C and 1° at high temperature! f(t) After recognizing that there is only one page of the horse sucked in 2 (its:), the page turning dνJ begins in Figure 1 (((υ) and below. Also, it is pulled by the document suction device 2. ``If there are more than 2 sheets of paper, the document suction device Pj, 2K repeats the above operation until the number of originals that are suctioned is 1.'' However, during the above-mentioned extreme operation, the double feed prevention device 3
), and even though the original is attracted to the suction device 1, the suction force between the documents is extremely large, so the double feed prevention device 1') 3 is in the standby position. 11゛、Raka original r
If it does not fall to the ib position, the suction force of the double feed prevention device 3 is increased and the suction force of the document suction device is increased for a certain period of time, that is, the double feed prevention device 1 is increased without stopping the suction operation of the document suction device. The suction operation continues even while moving backward. Even after doing this, if the next rE, draft 25'' cannot be withdrawn, all operations are stopped and a notification to that effect is sent.

As described above, when the document suctioned by the document suction device 2 is only one document 25' at Gl- position to be fed, as shown in FIG. 1 (6) to 0.0)K Then, the suction operation of the document suction device 2 and double feed prevention device 3 was stopped, and the document was sandwiched between both devices along the direction of arrow B.
25' and finishes turning over the top document 25'.

After the uppermost document 25' is turned over, the document suction device 2 and the double feed prevention device 3 return to the standby state shown in FIG. 1(1). Then, the same operation is repeated for the next document 25, and the documents are sequentially turned over.

As the pages are turned one after another in this way, the booklet-like manuscript l
However, in this device, the tri document suction device 2 is able to actually suction the document.In other words, in this device,
The suction port of the document suction device 2 is located at the edge 5 of the booklet document l.
This is to prevent so-called suction errors, which can cause air leakage, reduce suction power, and prevent documents from being suctioned.
1) Position the document suction device 2 while avoiding the area where the suction unit 1'' has the edge 5 of the booklet document ■.
J', it's like that.

Effects> As described above, according to the present invention, the document suctioned by the document suction device is not damaged or soiled, and 1-1. Since this small device can actually turn pages one by one, it can be used reliably when turning the pages of various types of manuscripts, including booklet manuscripts.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the operation of the page turning device according to (1) to "Screams not uttered", and FIG. 2 is a diagram of the operation circuit diagram of the insert. ■...Booklet-like original, 2...Document adsorption device, 3...Double feed prevention device, 4.Air suction port, 5...Small "I, 20...
...Position control circuit, 21...Document suction detection circuit, 22
・Attraction force control circuit, 25', 25''...manuscript. Agent: Patent attorney Yoshihiko Fukushi (2 others) (6) (8) <q>(IQ> Figure 1 (1)? (2) ) (3) (4) (5)

Claims (1)

[Claims] 1. Document suction unit L1' that activates air suction 1-1
and a double-feed prevention device which performs a double-feed prevention operation by moving air suction [1] to a position opposite to the document suction surface when the document suction device is in a predetermined position. Device.